Side element of a shoe upper



FIG. 1 is a perspective view of a side element of a shoe upper showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is front view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a top view thereof.

The phantom line showing of a shoe midsole, shoe outsole and portions of a shoe upper shown in FIGS. 1-5 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a side element of a shoe upper, as shown and described. 